Forest cover drives leaf litter ant diversity in primary rainforest remnants within human-modified tropical landscapes

摘要: The main effects of habitat loss and fragmentation have been addressed through changes in diversity patterns at different spatial levels. Species richness are the most used descriptors to assess effect land use on tropical communities. However, other biological responses such as trophic guilds may also provide a better understanding about robustness resilience environments disturbance. In this study, we evaluated how local landscape characteristics associated affect: (i) species Shannon well (ii) guild leaf litter ants human-modified rainforest landscapes Mexico. For this, sampled 16 sampling sites recorded series both (i.e. elevation, temperature, relative humidity, soil pH, canopy cover, volume vegetation structure) level heterogeneity, forest cover connectivity). Overall, observed that increasing primary within positively influenced guilds. addition, level, found only ant were negatively with tree density number trees, cover). These findings suggest opportunistic can be favored low density. short, our complementary approach highlights importance environmental variability maintenance biodiversity remnants.